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30923080 = 2355913103
BaseRepresentation
bin111010111110…
…1100101001000
32011012001111021
41311331211020
530404014310
63022442224
7523561516
oct165754510
964161437
1030923080
1116500a71
12a433374
1365391a6
14416d4b6
152aac5da
hex1d7d948

30923080 has 32 divisors (see below), whose sum is σ = 70761600. Its totient is φ = 12158656.

The previous prime is 30923059. The next prime is 30923099. The reversal of 30923080 is 8032903.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4192 + ... + 8911.

It is an arithmetic number, because the mean of its divisors is an integer number (2211300).

Almost surely, 230923080 is an apocalyptic number.

It is an amenable number.

30923080 is an abundant number, since it is smaller than the sum of its proper divisors (39838520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30923080 is a wasteful number, since it uses less digits than its factorization.

30923080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13173 (or 13169 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 30923080 is about 5560.8524526371. The cubic root of 30923080 is about 313.8780274636.

Adding to 30923080 its reverse (8032903), we get a palindrome (38955983).

The spelling of 30923080 in words is "thirty million, nine hundred twenty-three thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 59 118 236 295 472 590 1180 2360 13103 26206 52412 65515 104824 131030 262060 524120 773077 1546154 3092308 3865385 6184616 7730770 15461540 30923080